不同类型新能源接入对微电网频率的影响
摘要:为建设新型能源体系与构建以新能源为主体的新型电力系统，不同类型的新能源加入到电力系统中，高比例新能源的加入对电力系统的影响日益显现。基于国家大力发展新能源的时代背景，结合广东山区具有发展小水电和风电的区位优势，运用理论、仿真等研究方法，对光伏、风电、小水电等不同种类新能源组成的多能互补微电网孤岛初期频率变化规律问题展开研究。首先，研究小水电、风电及光伏发电分别作为单独的分布式能源接进微电网孤岛运行幅频变化情况，发现只有光伏微电网具有较好的孤岛运行稳定性。接着，探讨小水电和光伏分别加入对风电微电网在孤岛初期幅频变化的影响，发现光伏对风电微电网全工况都有支撑作用，而小水电在特定工况下支撑作用较大。最后，分析风光水多能互补微电网孤岛初期幅频变化的影响，研究结果表明风光水多种新能源在一定配比下具有较好的运行稳定性。
Abstract：In order to build a new energy system and a new power system with new energy as the main body, different types of new energy have joined the power system, and the influence of the addition of a high proportion of new energy on the power system has become increasingly apparent. Based on the era background of national efforts to develop new energy, combined with the location advantages of small hydropower and wind power in the mountainous area of Guangdong province, using theory, simulation and other research methods, the frequency variation law of multi-energy complementary microgrid island composed of different kinds of new energy such as photovoltaic, wind power, small hydropower was studied in the initial stage. Firstly, the variation of the amplitude and frequency of small hydropower, wind power and photovoltaic power generation as separate distributed energy sources were respectively connected to the microgrid island operation. It was found that only the photovoltaic microgrid had better island operation stability. Then, the influence of the addition of small hydropower and photovoltaic on the amplitude and frequency change of wind power microgrid in the initial island was discussed. It was found that photovoltaic had a supporting effect on the whole working condition of wind power microgrid, while small hydropower had a greater supporting effect under specific working conditions. Finally, the influence of amplitude and frequency changes in the initial phase of the wind-light-water multi-energy complementary microgrid islanding was analyzed. The results showed that the wind-light-water multi-energy new energy had better operation stability under a certain ratio.
标题：不同类型新能源接入对微电网频率的影响
title:Impact of Different Types of New Energy Access on Microgrid Frequency
作者：李书勇,蔡海青,沈娜,顾浩瀚,郭长兴
authors:LI Shuyong,CAI Haiqing,SHEN Na,GU Haohan,GUO Changxing
关键词：新能源,分布式电源,微电网,孤岛,频率,
keywords:new energy,distributed generation,microgrid,isolated island,frequency,
发表日期：2024-05-15
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